LS4899-7B1 Ver la hoja de datos (PDF) - Power-One Inc.
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LS4899-7B1 Datasheet PDF : 27 Pages
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Cassette Style
100 Watt AC-DC Converters
S Series PFC
Input Inrush Current Characteristic
Iinr [A]
130
04006
100
Ui = 255 Vrms
Ui = 115 Vrms
50
Static Input current Characteristic
li [Arms]
3
2.5
2
1.5
1
0.5
50
100 150 200 250
04005
Ui [V AC]
300
Fig. 6
Input current versus input voltage at Io nom
1
0
1
2
3 t [ms]
Fig. 4
Theoretical input inrush current versus time at Ui 255 Vrms
and 115 Vrms, Rext = 0.
Harmonic Currents
The harmonic distortion is well below the limits specified in
IEC/EN 61000-3-2, class D.
Ii [mA/W]
04042
3.5
3.0
Limit class D according
2.5
to IEC/EN 61000-3-2
2.0
1.5
1.0
0.5
0
Harm.
3 5 7 9 11 13 15 17 19
Fig. 5
Harmonic currents at the input, IEC/EN 61000-3-2,
class D. Ui = Ui nom, Io = Io nom.
Power Factor, Harmonics
Power factor correction is achieved by controlling the input
current waveform synchronously with the input voltage
waveform. The power factor control is active under all oper-
ating conditions.
Power Factor
1
04004
0.95
0.9
0.85
Ui = 230 V AC
Ui = 85 V AC
0.8
0.75
0.7
0
0.2
0.4
0.6
0.8
1 Io /Io nom
Fig. 7
Power factor versus output current at Ui 230 V AC and
85 V AC.
Edition 01/01.2001
5/27
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